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btrfs: simplify finding the inode in submit_one_bio

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struct btrfs_bio now has an always valid inode pointer that can be used
to find the inode in submit_one_bio, so use that and initialize all
variables for which it is possible at declaration time.

Reviewed-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Christoph Hellwig 2023-03-07 17:39:42 +01:00 committed by David Sterba
parent b7d463a1d1
commit d733ea012d
1 changed files with 4 additions and 11 deletions
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15
fs/btrfs/extent_io.c
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@ -123,23 +123,16 @@ struct btrfs_bio_ctrl {
static void submit_one_bio(struct btrfs_bio_ctrl *bio_ctrl)
{
struct bio *bio;
struct bio_vec *bv;
struct inode *inode;
int mirror_num;
struct bio *bio = bio_ctrl->bio;
int mirror_num = bio_ctrl->mirror_num;
if (!bio_ctrl->bio)
if (!bio)
return;
bio = bio_ctrl->bio;
bv = bio_first_bvec_all(bio);
inode = bv->bv_page->mapping->host;
mirror_num = bio_ctrl->mirror_num;
/* Caller should ensure the bio has at least some range added */
ASSERT(bio->bi_iter.bi_size);
if (!is_data_inode(inode)) {
if (!is_data_inode(&btrfs_bio(bio)->inode->vfs_inode)) {
if (btrfs_op(bio) != BTRFS_MAP_WRITE) {
/*
* For metadata read, we should have the parent_check,